commit f618ebfcbf9616a0fa9a78f5ecb69762f0fa3c59
author Wolfgang Ocker <weo@reccoware.de> Wed Oct 15 15:00:47 2008 +0200
committer Kumar Gala <galak@kernel.crashing.org> Mon Oct 20 23:34:01 2008 -0500
tree 89ac6262cce1610e61aa846ae305ea2c0c6323b2
parent fd657efc67dbd70f422285101a50c2e84d03463d

of/spi: Support specifying chip select as active high via device tree

The patch allows to specify that an SPI device needs an active high chip
select.

Signed-off-by: Wolfgang Ocker <weo@reccoware.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

drivers/of/of_spi.c

diff --git a/drivers/of/of_spi.c b/drivers/of/of_spi.c
index b01eec0..bed0ed6 100644
--- a/drivers/of/of_spi.c
+++ b/drivers/of/of_spi.c
@@ -61,6 +61,8 @@
 			spi->mode |= SPI_CPHA;
 		if (of_find_property(nc, "spi-cpol", NULL))
 			spi->mode |= SPI_CPOL;
+		if (of_find_property(nc, "spi-cs-high", NULL))
+			spi->mode |= SPI_CS_HIGH;
 
 		/* Device speed */
 		prop = of_get_property(nc, "spi-max-frequency", &len);